当前位置: 首页 > 文章 > 纳米氧化铜对紫花苜蓿种子发芽和幼苗生长的毒害作用 上海农业学报 2014,30 (4) 47-51
Position: Home > Articles > Toxicity of nano-copper oxide on the seed germination and seedling growth of alfalfa Acta Agriculturae Shanghai 2014,30 (4) 47-51

纳米氧化铜对紫花苜蓿种子发芽和幼苗生长的毒害作用

作  者:
刘振国;王伟;王天慧
单  位:
上海大学生命科学实验中心
关键词:
纳米氧化铜;硫酸铜;紫花苜蓿;种子发芽;纳米效应
摘  要:
以紫花苜蓿作为研究对象,探讨了不同浓度的纳米氧化铜对紫花苜蓿种子发芽和幼苗生长的影响,并和硫酸铜处理进行了对比。结果表明:纳米氧化铜体积浓度达到0.0125 mol/L时开始对紫花苜蓿种子的发育产生明显抑制作用,硫酸铜体积浓度达到0.4 mmol/L时开始对紫花苜蓿种子的发育产生明显抑制作用;和对照纯水处理相比,虽然不同浓度的纳米氧化铜对紫花苜蓿幼苗的根重和苗重没有显著影响,但是对紫花苜蓿种子的发芽率和幼苗长度都表现出显著的抑制作用,并且随着纳米氧化铜浓度的增大抑制作用增强。推测纳米氧化铜表现出来的毒性是游离在溶液中的Cu~(2+)和作为纳米材料所具有的纳米效应共同引起的。
译  名:
Toxicity of nano-copper oxide on the seed germination and seedling growth of alfalfa
作  者:
LIU Zhen-guo;WANG Wei;WANG Tian-hui;Experimental Center for Life Sciences,School of Life Sciences,Shanghai University;Shanghai Key Laboratory of Bio-Energy Crops;
关键词:
Nano-copper oxide;;Cupric sulfate;;Alfalfa;;Seed germination;;Nano-effect
摘  要:
Effects of different concentrations of nano-copper oxide on the seed germination and seedling growth of alfalfa were studied with alfalfa as the object,and comparing with CuSO_4 treatments.The results showed that there was obvious inhibition on alfalfa seed development when nancopper oxide concentration reached 0.0125 mol/L,or CuSO_4 concentration reached 0.4 mmol/L.Compared with the pure water treatment,there were no significant influences on alfalfa's root weight and seedling weight,but there were significant influences on seed germination rate and seedling length,and higher the concentrations of nan-copper oxide,stronger the inhibition.We speculated that the toxicity of nano-copper oxide was common caused by free Cu~(2+) in solution and the nano-effect as nanometer materials.

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